Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Decimal Subtraction |
Grade: 4-a Lesson: S2-L4 |
Explanation: Let us verify the answer here with the steps. |
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
David spent $546.9 on books and $128.3 on ice cream. How much more amount did he spend on books than ice cream? |
|
2 |
Clue |
Than implies Subtraction |
Subtraction |
3 |
Hint |
Operator used : Subtraction |
- |
4 |
Step |
Amount spent by David on books |
$546.9 |
5 |
Step |
Amount spent by David on ice cream |
$128.3 |
6 |
Step |
Difference in amount spent on books and ice cream |
$546.9 - $128.3 |
7 |
Step |
= |
\$418.6\$ |
8 |
Step |
Therefore, difference in amount spent on books and ice cream |
$418.6 |
9 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
10 |
Choice.A |
This option is correct because it represents the difference in the amount David spent on books compared to ice cream |
$418.60 |
11 |
Choice.B |
This option is incorrect because it does not match the calculated difference. The actual difference is $418.6, not $415.6. Option B underestimates the difference |
$415.60 |
12 |
Choice.C |
This option is incorrect because it suggests a difference of $425.6, which is more than the actual difference of $418.6 |
$425.60 |
13 |
Choice.D |
This option is incorrect because it is also slightly more than the correct difference. The actual difference is $418.6, not $420.6 |
$420.60 |
14 |
Answer |
Option |
A |
15 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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